EU chief warns wolf packs 'real danger' in Europe

Brussels launched a review Monday of laws protecting wolves from hunters and farmers, as EU chief Ursula von der Leyen argued that packs threaten livestock and perhaps even people.

How a lone 'immigrant' wolf revived a forest ecosystem

In 1997, a lone wolf crossed an ice bridge that briefly connected Canada with the remote Isle Royale, which lies off the coast of Michigan in Lake Superior and is renowned for its rich biodiversity.

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